Policy can only be repealed or amended by the body that set it, or by a more senior body. For example, policy set by the Executive Committee can be changed by the Executive Committee or SU Council. Policy set by SU Council can only be repealed by SU Council or a referendum. Finally, policy agreed by referendum can only be repealed or changed by referendum.

Many policies are agreed by the Executive Committee or SU Council. Many of those policies are related to changing events such as support for a local mental health campaign and are fulfilled on a regular basis. Policies which are agreed by referendum are usually associated with national campaigns.

The following policies have been agreed by referendum in recent years: